Smuckers=Laura Scudders.
It's LS in the West, from what I can tell, and Smuckers in the East. I love it either way! If you keep it out of the fridge, it will be thinner than in the fridge, but it will also separate and thus require mixing before use each time.
I agree about adding water. That would help. If you were at the point where you wanted to have the bad stuff really badly, I would try adding some canola oil to the peanut butter to see if that helps thin it down a bit. It would add a lot of fat to something that's already fatty, but at least it would be good fat and not those death-mongers, trans-fatty acids. <shiver>

Stay away from those!